Title:
TAPERED ROLLER BEARING AND ITS PRE-LOADING METHOD
Document Type and Number:
Japanese Patent JP3681023
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the time for the running-in operation while improving the handling property without greatly increasing the price.
SOLUTION: In a tapered roller bearing 1 of oil lubrication type, a lubricating film 6 made of the polymer containing fluorine with functional group is formed at least on one of a tapered roller 4 or raceway surfaces of inner and outer rings 2, 3. Because the lubricating film 6 is remarkably excellent in the lubricity enough to reduce the frictional resistance, the displacement of the tapered roller 4 on the raceway surface becomes smooth. When the running-in operation to rotate the inner ring 2 slightly is performed after the assembly of the tapered roller bearing 1, the gap δ1 between a large flange part 2a of the inner ring 2 and a large end face 4a of the tapered roller 4 can be eliminated, and the subsequent preload can be appropriately and surely provided.
Inventors:
Hideaki Ishii
Toyota Yasushi
Toyota Yasushi
Application Number:
JP25907896A
Publication Date:
August 10, 2005
Filing Date:
September 30, 1996
Export Citation:
Assignee:
Koyo Seiko Co., Ltd.
International Classes:
F16C25/06; F16C19/34; F16C33/36; F16C33/58; F16C33/66; (IPC1-7): F16C19/34; F16C33/36; F16C33/58; F16C33/66
Domestic Patent References:
| JP6229426A | ||||
| JP6229423A | ||||
| JP8117245A | ||||
| JP2256921A | ||||
| JP62246621A | ||||
| JP61004727A | ||||
| JP62187798A |
Attorney, Agent or Firm:
Kazuhide Okada
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